Hinge



open space between.

PATENT portion.

CHARLES B. ROBERTS, 0F BERKELEY, CALIFORNIA HINGE.

Application filed Oct ber 30, 1920. Serial No. 420,634.

To all whom it may concern:

Be it known that 1, CHARLES B. ROBERTS, citizen of the United States, residing at the city of Berkele in the county of Alameda and State of alifornia, have invented certain new and useful Improvements. in Hinges, of which the following is a specification.

This invention relates to improvements in hinges and has as its object the construction of a hinge in which the distance between the two leaves in their closed position may be ad usted.

In accomplishing this object, one of the hinge leaves is made of the usual type, the I other leaf being formed with an enlarged knuckle in which is held a bushing having an eccentric opening which opening holds the pivot pin. By rotating the bushing the position of the hole is changed, with reference to the faces of the hinge leaves and thus the pivot pin and the other knuckle are correspondingly moved. i

. The'construction as herein illustrated differs in appearance but little from the usual hinge construction, is easily adjusted and effectively holds its position for any adjustment.

With theseand other objects in view, my invention consists in certain'novel features of construction, combinations and arrangement of parts herein illustrated and more particularly pointed out in the appended claims. I

Reference being had to the accompanying drawings forming a part of this specification:

Figure 1 isa view in elevation of my improved hinge.

Fig. 2 is a view in section through the sleeves showing the interior construction of the hinge.

Fig. 3 is a view in section on the line 33 Fi 1.

E i 4% is a view similar to Fig.3, but showin the parts in an adjusted position.

eferring to corresponding parts in the several views by the same numerals of referonce: 1 and 2 denote the hinge leaves, the former having knuckles 3 and 4 with an These knuckles contain axial openings 12 in which the ivot pin 5 makes a-close fit. The hinge eaf 2 is formed with a knuckle 6 which fits between the knuckles 3 and 4: and has a somewhat larger diameter than the latter. Within Specification of Letters Patent. Patented Dec. 2'7, 1921.

knuckle 6 is 'a cylindrical bushing 7, having an eccentrically disposed axially extending hole 8 of the same diameter as the pivot pin. The back portion of theknuckle 6 has an arcuate slot 9 through which extends a set screw 10. This set screw is in threaded en-.

gagement with the bushing '7 and by turning the screw inwardly theunder surface of the head 11 contacts with the outer surface of the knuckle and thus binds the bushing and holds it in a fixed position in the knuckle.

In use the hinge is attached to the door 15 and its jam 16 by means of screws 17. Then, if the door is not plumb or does not line up with the door jam it mav be brought into position by turning the bushing 7. If the bushing is turned in a counterclockwise direction, thetwo faces of the hinge leaves are brought closer together, while if it is moved in a clockwise direction the hinge leaves are separated and the door correspondingly moved. When the correct adjustment has been made the screw is tightened to revent further turning of the bushing an to hold the adjustment of the door.

a For the purpose of taking all shearing strains oil the screw I provide a shoulder' 14 at the bottom of holev 18 through the knuckle 6. Thus the weight of the door is transmitted from knuckle 3 to bushing 7 and from the latter through shoulder 1 1 to,

1 the lower end of said enlarged knuckle and" a pivot pin extending through the holes in said knuckles and the hole in said bushing. 2. An adjustable hinge comprising hinge leaves, spaced knuckles on one of said leaves having alining concentric holes, an enlarged knuckle on the other leaf adapted to fit between said spaced knuckles, a bushing revolug 4 memee bly mounted ill/Said enlarged knuckle, said screw provfiiing means I fer turning said bushing having an eecentricaliy disposed bushing and, heiding itin adjusted position, iqngitudiiiai hale, e sheuider 0n the lower ami a ivet pin extending through the alin- 10 end. of said enlarged knuckle to prevent 1011- inghe es end through the hole in said bush- 5 grituciinel. displacement of said bushing, a ing.

screw engaging said. bushing and extending In testimony Whereef E afiix my signature. through e slot in the enlarged lmu'ckle, Sam B. ROBERTS. 

